[Buildroot] Setting better names for partitions

[Fabio Estevam]

Hi,

On i.MX we usually generate the boot images via
board/freescale/common/imx/post-image.sh script, which creates two
partitions:
- One that contains the dtb and kernel
- One for rootfs

The names of these partitions are strings like 5934-861D and
ad09a287-46a9-4790-ba97-fbbb549e5e96.

Is there a way to specify a better name for the partitions? Something
like "boot" and "rootfs" instead?

If so, how can this be achieved?

Thanks,

Fabio Estevam